Theodosius III of Byzantium

Theodosius III of Byzantium (685-755) was the Emperor of the Byzantine Empire from 715 to 717, succeeding Anastasius II of Byzantium and preceding Leo III of Byzantium.

Biography
Theodosius was born in 685 to the House of Apsimaros, and Theodosius served as a financial officer and tax collector of the Byzantine Empire. When the Theme of Opsikion's forces overthrew Emperor Anastasius II of Byzantium, the troops elected Theodosius as the new emperor. Anastasius was persuaded by the Patriarch of Constantinople to become a monk, and Theodosius concluded a peace treaty with Khan Tervel of Bulgaria as well. He fought against the Arabs, but in 717 a strategos overthrew him and became Leo III of Byzantium, who would relieve Constantinople from the Arab siege. By 729 Theodosius became Bishop of Ephesus, and he died in 755.